(CNSNews.com) - The latest Gallup national tracking poll of registered Republican voters shows former House Speaker Newt Gingrich with an 8-point lead over former Massachusetts Gov. Mitt Romney in the Republican presidential nomination race.

Since the South Carolina primary last Saturday, Gingrich has picked up 7 points in the Gallup national poll and Romney has dropped 6 points.

Gallup’s 5-day national tracking poll completed on Jan. 21, the day of the South Carolina primary, had put Romney at 30 percent, Gingrich at 25 percent, Paul at 13 percent, and Santorum at 12 percent.

Although Gallup’s national poll now has Gingrich leading Romney, Romney still leads Gingrich by just over 7 points in the RealClearPolitics average of polls in Florida, which will hold its primary on Tuesday.